Search a number
-
+
213482185 = 57101131461
BaseRepresentation
bin11001011100101…
…11101011001001
3112212201000111121
430232113223021
5414122412220
633103355241
75201366020
oct1456275311
9485630447
10213482185
11aa561364
125b5b2b21
13352c7b27
14204d18b7
1513b1deaa
hexcb97ac9

213482185 has 32 divisors (see below), whose sum is σ = 298577664. Its totient is φ = 143520000.

The previous prime is 213482183. The next prime is 213482201. The reversal of 213482185 is 581284312.

It is a happy number.

It is not a de Polignac number, because 213482185 - 21 = 213482183 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213482185.

It is not an unprimeable number, because it can be changed into a prime (213482183) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 462855 + ... + 463315.

It is an arithmetic number, because the mean of its divisors is an integer number (9330552).

Almost surely, 2213482185 is an apocalyptic number.

It is an amenable number.

213482185 is a deficient number, since it is larger than the sum of its proper divisors (85095479).

213482185 is a wasteful number, since it uses less digits than its factorization.

213482185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705.

The product of its digits is 15360, while the sum is 34.

The square root of 213482185 is about 14611.0295667349. The cubic root of 213482185 is about 597.6595723491.

The spelling of 213482185 in words is "two hundred thirteen million, four hundred eighty-two thousand, one hundred eighty-five".

Divisors: 1 5 7 35 101 131 461 505 655 707 917 2305 3227 3535 4585 13231 16135 46561 60391 66155 92617 232805 301955 325927 422737 463085 1629635 2113685 6099491 30497455 42696437 213482185